VoIP
HARDWARE OVERVIEW
VoIP | LSL Gateway Overview
Product Overview
LSL is a 19" wide; rack mountable VoIP Gateway that carries both voice and facsimile over the IP
network. It supports SIP industry standard call control protocols. As a standard user agent, it is
compatible to all well-known Soft Switches, SIP proxy servers.
With only a broadband connection such as an ADSL bridge/router, Cable Modem or leased line router, it
allows you to gain access to voice and fax services over IP in order to reduce the cost of international
and long distance calls.
QoS function allows voice and data traffic to flow through where voice traffic is transmitted in the
highest priority. With TOS bit enabled, it guarantees voice packets to have first priority to pass through
a TOS enabled router. By enabling the CDR function & setting up a simple server, administrators are
allowed to log and view all call records such as call duration, time and date of calls and latency, etc.
Key Features and Benefits
• SIP (RFC 3261) compliant
• Supports 16/32 analogue telephony interfaces or single E1 / T1 PRI interface
• QoS support guarantees voice bandwidth in a busy network
• Supports IP ToS (Type of Service)
• T.30 (G III) / Real Time T.38 / Secured T.38 Fax Relay
• Feasible for Fixed IP or dynamic IP network (PPPoE / DHCP client and DDNS)
• Configurable Hot Line feature
• Supports IP-to-PSTN / PSTN-to-IP applications
• Life-Line support (IP / power fail over relay)
• NAT traversal STUN, UPnP
• Pass through NAT
• Call Detailed Records (CDR)
• Web-based firmware upgrade
• Caller ID Detection for
o FXS: DTMF & FSK Caller ID generation
o FXO: DTMF & FSK Caller ID detection
• Easy Configuration by IVR and Web-based GUI
• Greeting message
• Supports SNMP V.2 (optional)
